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https://www.readbyqxmd.com/read/28527898/triterpenes-and-meroterpenes-from-ganoderma-lucidum-with-inhibitory-activity-against-hmgs-reductase-aldose-reductase-and-%C3%AE-glucosidase
#1
Baosong Chen, Jin Tian, Jinjin Zhang, Kai Wang, Li Liu, Bo Yang, Li Bao, Hongwei Liu
Seven new compounds including four lanostane triterpenoids, lucidenic acids Q-S (1-3) and methyl ganoderate P (4), and three triterpene-farnesyl hydroquinone conjugates, ganolucinins A-C (5-7), one new natural product ganomycin J (8), and 73 known compounds (9-81) were isolated from fruiting bodies of Ganoderma lucidum. The structures of the compounds 1-8 were determined by spectroscopic methods. Bioactivities of compounds isolated were assayed against HMG-CoA reductase, aldose reductase, α-glucosidase, and PTP1B...
May 17, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28527877/esculetin-ameliorates-hepatic-fibrosis-in-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-by-regulation-of-foxo1-mediated-pathway
#2
Anuradha Pandey, Priyank Raj, Santosh Kumar Goru, Almesh Kadakol, Vajir Malek, Nisha Sharma, Anil Bhanudas Gaikwad
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD), a chronic metabolic disorder is associated with oxidative stress, inflammation and fibrotic cascades. In this study, we aimed to examine the effects of Esculetin, a well-known anti-oxidant on TGF-β1 mediated liver fibrosis and FoxO1 activity. METHODS: A non-genetic murine model for NAFLD was developed by chronic high fat diet (HFD) (58% calories from fats) feeding in Wistar rats. The plasma biochemical parameters, liver function tests, oxidative stress, and histopathological alterations were assessed...
February 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28526762/exacerbation-of-thromboinflammation-by-hyperglycemia-precipitates-cerebral-infarct-growth-and-hemorrhagic-transformation
#3
Jean-Philippe Desilles, Varouna Syvannarath, Véronique Ollivier, Clément Journé, Sandrine Delbosc, Célina Ducroux, William Boisseau, Liliane Louedec, Lucas Di Meglio, Stéphane Loyau, Martine Jandrot-Perrus, Louis Potier, Jean-Baptiste Michel, Mikael Mazighi, Benoit Ho-Tin-Noé
BACKGROUND AND PURPOSE: Admission hyperglycemia is associated with a poor outcome in acute ischemic stroke. How hyperglycemia impacts the pathophysiology of acute ischemic stroke remains largely unknown. We investigated how preexisting hyperglycemia increases ischemia/reperfusion cerebral injury. METHODS: Normoglycemic and streptozotocin-treated hyperglycemic rats were subjected to transient middle cerebral artery occlusion. Infarct growth and brain perfusion were assessed by magnetic resonance imaging...
May 19, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28513516/admission-hyperglycemia-an-independent-predictor-of-outcome-in-acute-ischemic-stroke-a-longitudinal-study-from-a-tertiary-care-hospital-in-south-india
#4
S K Marulaiah, M P Reddy, M Basavegowda, Pkh Ramaswamy, L S Adarsh
BACKGROUND: Stroke is one of the important causes of long-term disability-related deaths worldwide. Incidence and prevalence of stroke have been steadily increasing in India. Increasing interest has been focused on the role of admission hyperglycemia in the evolution of acute ischemic stroke. Very few studies were conducted in south India; hence, we intended to do this study. METHODS: A total of 198 patients with acute ischemic stroke were included in a hospital-based longitudinal study to identify the independent factors (demographic, clinical, and biochemical parameters) associated with poor outcome (functional impairment-mRS ≥ 3 and mortality at 90 days of follow-up...
May 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28513455/glucose-tolerance-disorders-during-treatment-with-glucocorticoids-in-patients-with-inflammatory-diseases-of-the-musculoskeletal-system-based-on-the-analysis-of-data-from-the-literature-and-own-research-results
#5
Piotr Dąbrowski, Maria Majdan
Glucocorticoids are among the most frequently used anti-inflammatory and immunosuppressive drugs. They are widely used in the treatment of numerous autoimmune disorders. However, the treatment with glucocorticoids is connected with the risk of a number of side effects. Among them, glucose tolerance disorders play an important role. The results of meta-analyses show that the risk of diabetes is from 1.4 to 2.5 times higher in the case of treated patients in comparison to the general population. Glucocorticoids can directly impair pancreatic β-cell secretion...
May 4, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28512417/a-case-of-paraneoplastic-cushing-syndrome-presenting-as-hyperglycemic-hyperosmolar-nonketotic-syndrome
#6
Christina E Brzezniak, Nicole Vietor, Patricia E Hogan, Bryan Oronsky, Bennett Thilagar, Carolyn M Ray, Scott Caroen, Michelle Lybeck, Neil Oronsky, Corey A Carter
Carcinoid tumors are neuroendocrine tumors that mainly arise in the gastrointestinal tract, lungs, and bronchi. Bronchopulmonary carcinoids have been associated with Cushing syndrome, which results from ectopic adrenocorticotrophic hormone (ACTH) secretion. We report the case of a 65-year-old man, a colonel in the US Air Force, with metastatic bronchopulmonary carcinoid tumors treated on a clinical trial who was hospitalized for complaints of increasing thirst, polydipsia, polyuria, weakness, and visual changes...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28501147/a-fluorescent-homogeneous-assay-for-myeloperoxidase-measurement-in-biological-samples-a-positive-correlation-between-myeloperoxidase-generated-hocl-level-and-oxidative-status-in-stz-diabetic-rats
#7
Pierre Stocker, Mathieu Cassien, Nicolas Vidal, Sophie Thétiot-Laurent, Sylvia Pietri
Myeloperoxidase (MPO) is a key enzyme derived from leukocytes which is associated with the initiation and progression of many inflammatory diseases. Increased levels of MPO may contribute to cellular dysfunction and tissues injury by producing highly reactive oxidants such as hypochlorous acid (HOCl). Myeloperoxidase-generated HOCl is therefore considered as a relevant biomarker of oxidative stress-related damage and its quantitation is of great importance to the study of disease progression. In this context, the current study describes a rapid, sensitive and homogeneous fluorescence-based method for detecting the MPO chlorination activity in biological samples...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28495827/hyperbaric-oxygen-reduces-infarction-volume-and-hemorrhagic-transformation-through-atp-nad-sirt1-pathway-in-hyperglycemic-middle-cerebral-artery-occlusion-rats
#8
Qin Hu, Anatol Manaenko, Hetao Bian, Zongduo Guo, Jun-Long Huang, Zhen-Ni Guo, Peng Yang, Jiping Tang, John H Zhang
BACKGROUND AND PURPOSE: Energy depletion is a critical factor leading to cell death and brain dysfunction after ischemic stroke. In this study, we investigated whether energy depletion is involved in hyperglycemia-induced hemorrhagic transformation after ischemic stroke and determined the pathway underlying the beneficial effects of hyperbaric oxygen (HBO). METHODS: After 2-hour middle cerebral artery occlusion, hyperglycemia was induced by injecting 50% dextrose (6 mL/kg) intraperitoneally at the onset of reperfusion...
May 11, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28495602/a-review-of-traditional-uses-phytochemistry-and-pharmacology-of-portulaca-oleracea-l
#9
REVIEW
Milad Iranshahy, Behjat Javadi, Mehrdad Iranshahi, Seyedeh Pardis Jahanbakhsh, Saman Mahyari, Faezeh Vahdati Hassani, Gholamreza Karimi
ETHNOPHARMACOLOGICAL RELEVANCE: Portulaca oleracea L. is a widespread medicinal plant that is used not only as an edible plant, but also as a traditional medicine for alleviating a wide spectrum of diseases. It is a well-known plant in the European Traditional Medicine. PA is mentioned by Dioscorides (40-90 CE), with the name of "andrachne". AIM OF THE REVIEW: In this study, we provide detailed information on botany, traditional uses, phytochemistry, pharmacological uses, pharmacokinetics and safety of P...
May 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28494143/the-normal-meal-tolerance-test-is-preferable-to-the-glucagon-stimulation-test-in-patients-with-type-2-diabetes-that-are-not-in-a-hyperglycemic-state-comparison-with-the-change-of-%C3%AE-cpr
#10
Youhei Fujioka, Tsuyoshi Ohkura, Keisuke Sumi, Kazuhisa Matsumoto, Kyoko Shoji, Risa Nakamura, Kazuhiko Matsuzawa, Shoichiro Izawa, Masahiko Kato, Shinichi Taniguchi, Kazuhiro Yamamoto
AIMS: The aim of this study was to evaluate the properties of the glucagon stimulation test (GST) and the normal meal tolerance test (NMTT) in patients with type 2 diabetes. MATERIALS AND METHODS: We enrolled 142 patients with type 2 diabetes and performed a GST and a NMTT. We performed the NMTT using a calorie-controlled meal based on an intake of 30 kcal/kg ideal body weight/day. We calculated the change in C-peptide immunoreactivity (ΔCPR) by subtracting fasting CPR from the CPR 6 min after the 1 mg glucagon injection (GST) or 120 min after the meal (NMTT)...
May 11, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28494038/role-of-metformin-in-reversing-the-negative-impact-of-hyperglycemia-on-bone-healing-around-implants-inserted-in-type-2-diabetic-rats
#11
Caroline Ribeiro Serrão, Marta Ferreira Bastos, Daniele Ferreira Cruz, Fernando de Souza Malta, Paolla Camacho Vallim, Poliana Mendes Duarte
PURPOSE: There is interest in establishing hypoglycemiant agents able to contain/revert the impact of diabetes mellitus on osseointegration. The purpose of this study was to assess the possible effect of metformin in reversing the negative effects of hyperglycemia on the healing of bone surrounding implants inserted in rats. MATERIALS AND METHODS: Rats (10 per group) were assigned to one of the following groups: DM group: type 2 diabetic rats deprived of metformin (M) treatment; MDM group: type 2 diabetic rats under M treatment (40 mg/kg/day, starting on the 15th day after implant placement); control group: nondiabetic rats without M treatment...
May 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28493515/a-review-of-methods-for-measuring-%C3%AE-cell-function-design-considerations-from-the-restoring-insulin-secretion-rise-consortium
#12
REVIEW
T S Hannon, S E Kahn, K M Utschneider, T A Bucahan, K J Nadeau, P Zeitler, D A Ehrmann, S A Arslanian, S Caprio, S L Edelstein, P J Savage, K J Mather
The Restoring Insulin Secretion (RISE) study was initiated to evaluate interventions to slow or reverse the progression of β-cell failure in type 2 diabetes (T2D). To design RISE, we undertook an evaluation of methods for measurement of β-cell function and changes in β-cell function in response to interventions. Here we present a review of approaches for measurement of β-cell function, focusing on methodologic and feasibility considerations. Methodologic considerations included 1) the utility of each technique for evaluating key aspects of ß-cell function (first- and second-phase insulin secretion, maximal insulin secretion, glucose sensitivity, incretin effects); and 2) tactics for incorporating a measurement of insulin sensitivity in order to appropriately adjust insulin secretion measures for insulin sensitivity...
May 11, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28489581/high-glucose-induces-formation-of-tau-hyperphosphorylation-via-cav-1-mtor-pathway-a-potential-molecular-mechanism-for-diabetes-induced-cognitive-dysfunction
#13
Jing Wu, Shan-Lei Zhou, Lin-Hua Pi, Xia-Jie Shi, Ling-Ran Ma, Zi Chen, Min-Li Qu, Xin Li, Sheng-Dan Nie, Duan-Fang Liao, Jin-Jing Pei, Shan Wang
The abnormally hyperphosphorylated tau is thought to be implicated in diabetes-associated cognitive deficits. The role of mammalian target of rapamycin (mTOR) / S6 kinase (S6K) signalling in the formation of tau hyperphosphorylation has been previously studied. Caveolin-1 (Cav-1), the essential structure protein of caveolae, promotes neuronal survival and growth, and inhibits glucose metabolism. In this study, we aimed to investigate the role of Cav-1 in the formation of tau hyperphosphorylation under chronic hyperglycemic condition (HGC)...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28475745/impact-of-visceral-obesity-and-metabolic-syndrome-on-the-postoperative-immune-inflammatory-and-endocrine-response-following-surgery-for-esophageal-adenocarcinoma
#14
S L Doyle, A M Mongan, C L Donohoe, G P Pidgeon, M Sherlock, J V Reynolds, J Lysaght
Visceral obesity and metabolic syndrome (MetSyn) represent a constellation of inflammation, insulin resistance, and hyperglycemia and are established risk factors for gastrointestinal cancer. However, their impact on the immune and inflammatory response after major upper gastrointestinal oncologic surgery is unknown. In 125 consecutive patients who underwent esophagectomy, C-reactive protein (CRP) and CRP:albumin levels were recorded preoperatively and on days 1, 3, 7, and 14 postoperatively. In a subset of 30 patients, circulating levels of IL-6, IL-8, IL-10, IL-12p70, IFN-γ, TNF-α, TGF-β, and cortisol were measured...
June 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28473248/endothelial-deletion-of-mtorc1-protects-against-hindlimb-ischemia-in-diabetic-mice-via-activation-of-autophagy-attenuation-of-oxidative-stress-and-alleviation-of-inflammation
#15
Wensi Fan, Dong Han, Zhongchan Sun, Sai Ma, Lei Gao, Jiangwei Chen, Xiang Li, Xiujuan Li, Miaomiao Fan, Congye Li, Dahai Hu, Yabin Wang, Feng Cao
Peripheral arterial disease (PAD) complicated with diabetes mellitus (DM) still remains a thorny issue due to lack of effective strategies. Our previous study has demonstrated that inhibition of mTORC1 protected adipose-derived stromal cells from hindlimb ischemic injury in PAD mice. However, whether inhibition of mTORC1 could protect against PAD in diabetes mellitus and the underlying mechanisms remained elusive. In this study, we employed endothelial-specific raptor (an essential component of the mTORC1 signaling complex) knockout (KO) mice (Tie2-mTORC1(ko)) to investigate whether and how mTORC1 downregulation could alleviate hindlimb ischemic injury in diabetic mice...
May 1, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28471499/efficacy-and-safety-of-single-drug-or-double-drug-antidiabetic-regimens-in-the-treatment-of-type-2-diabetes-mellitus-a-network-meta-analysis
#16
Xi-Ling Yang, Mi-Ma Duo-Ji, Zi-Wen Long
A network meta-analysis was performed in order compare the efficacy and safety of single-drug or double-drug antidiabetic regimens in the treatment of type 2 diabetes mellitus (T2DM). PubMed and Cochrane Library searches were conducted since inception to February 2017. Randomized controlled trials (RCTs) of different antidiabetic regimens in the treatment of T2DM were included in this study. Direct and indirect evidences were combined to calculate the odds ratio (OR) or weighted mean difference (WMD) and its 95% confidence interval (95% CI), and in order to draw the surface under the cumulative ranking curves (SUCRA)...
May 4, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28470781/elevated-donor-hemoglobin-a1c-does-not-impair-early-survival-in-cardiac-transplant-recipients
#17
Jeremy T Joseph, Michael S Mulvihill, Babatunde A Yerokun, Sadé M Bell, Carmelo A Milano, Matthew G Hartwig
BACKGROUND: Orthotopic heart transplantation (OHT) is the gold-standard therapy for end-stage heart failure. An increasing deficit between suitable allograft availability and clinical demand for OHT exists. The role of donor diabetes mellitus (DM) on post-transplant recipient outcomes in OHT is controversial. The purpose of this study was to examine donor hemoglobin A1c (HbA1c) levels to identify the impact of donor glycemic control on recipient survival. METHODS: Adult OHT recipients with donor HbA1c data were identified in the UNOS database from 2010-2015...
May 3, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28469094/relationship-between-oral-glucose-tolerance-test-characteristics-and-adverse-pregnancy-outcomes-among-women-with-gestational-diabetes-mellitus
#18
Hui Feng, Wei-Wei Zhu, Hui-Xia Yang, Yu-Mei Wei, Chen Wang, Ri-Na Su, Moshe Hod, Eran Hadar
BACKGROUND: Hyperglycemia is associated with adverse pregnancy outcomes. However, the relationships between them remain ambiguous. This study aimed to analyze the effect of different oral glucose tolerance test (OGTT) results on adverse perinatal outcomes. METHODS: This retrospective cohort study included data from 15 hospitals in Beijing from June 20, 2013 to November 30, 2013. Women with gestational diabetes mellitus (GDM) were categorized according to the number and distribution of abnormal OGTT values, and the characteristics of adverse pregnancy outcomes were evaluated...
May 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28465657/the-microrna-21-signaling-pathway-is-involved-in-prorenin-receptor-prr-induced-vegf-expression-in-arpe-19-cells-under-a-hyperglycemic-condition
#19
Rashidul Haque, P Michael Iuvone, Li He, Kimberly Su Chung Choi, Ashley Ngo, Samantha Gokhale, Madiha Aseem, Daniel Park
PURPOSE: MicroRNAs (miRNAs/miRs) are involved in a large number of biological functions and diseases, such as cancer, cardiovascular diseases, and diabetes. MiR-21 has been reported to target Sprouty homolog 1 (SPRY1), SMAD7, and PTEN. In this study, we examined the underlying role of miR-21 in the regulation of prorenin receptor (PRR)-mediated induction of vascular endothelial growth factor (VEGF) expression via targeting SMAD7, SPRY1, and PTEN in a hyperglycemic condition. METHODS: PRR-mediated induction of VEGF under a hyperglycemic condition (high glucose, 33mM) was studied by treating ARPE-19 cells with perindopril (10 µmol/l), which inhibits angiotensin II-mediated signaling...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28463898/glucose-kinetics-an-update-and-novel-insights-into-its-regulation-by-glucagon-and-glp-1
#20
Amalia Gastaldelli, Melania Gaggini, Ralph DeFronzo
PURPOSE OF REVIEW: Glucagon and GLP-1 share the same origin (i.e., proglucagon); primarily GLP-1 is generated from intestinal L-cells and glucagon from pancreatic α-cell, but intestinal glucagon and pancreatic GLP-1 secretion is likely. Glucose kinetics are tightly regulated by pancreatic hormones insulin and glucagon, but other hormones, including glucagon-like peptide-1 (GLP-1), also play an important role. The purpose of this review is to describe the recent findings on the mechanisms by which these two hormones regulate glucose kinetics...
April 29, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
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